Jealous or not??

Well he brought this all upon himself. When we got married and moved down to OK I was 4 months pregnant at the time. I was on his laptop and found sex sites he signed up for. Of course he swears up and down it wasn't him. Ok so a year goes by and I'm pregnant again with Alexandra..This happened before a month after he went to Iraq. I went to the library because we didn't have internet access at the time. I went online at the library and checked his email and found out that he traded pics with some girl. She had just sent him her pic 5 minutes before I signed on. Of course once again swears up and down it wasn't him. Ok..so now I watch everything he does..I check his email, i check his myspace, facebook and whatever else he has..He also told me he bought a new laptop but he refuses to send me his old one. Now I think he is hiding something and now I really want that laptop. Am I just being a jealous bitch and let it go or do you think I have reason to be?